I play situations in my mind and voice them later?
So usually every time I take a shower which is the only time I am completely alone and don't feel weird doing it, I just imagine things in my head and act them out. Like I'll imagine a scenario from school or a discussion or a completely made up situation (it's always things I hope would happen) and I mouth the words I'm thinking, I never actually say them out loud because once someone heard me and I had to pretend I was singing. I also articulate, it feels so real. Is it normal?